body {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100vh;
    margin: 0;
    background-color: #f0f0f0;
}

#game-board {
    display: grid;
    grid-template-columns: repeat(20, 20px);
    grid-template-rows: repeat(20, 20px);
    gap: 1px;
}

.cell {
    width: 20px;
    height: 20px;
    background-color: #fff;
    border: 1px solid #ddd;
}

.snake {
    background-color: #007bff;
}

.food {
    background-color: #ff0000;
}